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Numerous brackish estuarine water bodies are situated in the Polish Baltic Coastal Zone, including smaller and bigger lakes like Sarbsko, Łebsko, Gardno, Wicko, Kopań, Bukowo, Jamno, Resko Przymorskie, Liwia Łuża, Koprowo and Wicko Wielkie. Despite a similar genesis and geomorphological type, these lakes are characterized by different hydrological and hydrochemical conditions, determined by the predominance...
Estuaries are dynamic ecosystems characterized by great and constant variability of physicochemical gradients and biological parameters. Considerable fluctuations in salinity levels, temperature, pH, concentrations of oxygen, nutrients and organic matter are quite natural in such water bodies. There are many estuarine forms at the Polish Baltic Coast, including open-sea gulfs (the Gulf of Gdansk and...
A population of Hydrobia sp. (Hydrobia ulvae Pennant and Hydrobia ventrosa Montagu) was studied in the Polish coastal zone (up to 3 nautical miles) of the Baltic Sea within the open coast of Polish Middle Pomerania. Abundance, wet biomass, and the frequency of Hydrobia were determined in the coastal waters, including estuaries of the Wieprza, Słupia, Łupawa, Łeba rivers and open coastal in the vicinity...
A population of Mya arenaria was studied in the Polish coastal zone (up to 3 nautical miles) of the Baltic Sea in the open coast of Polish Middle Pomerania. Abundance, wet biomass, and the frequency of Mya were determined in the coastal waters, including estuaries of the Parseta, Wieprza, Słupia, Łupawa, and Łeba rivers and Władysławowo. The frequency (F) of Mya in the open coast of the Middle Pomerania...
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